monarchal vs noble

monarchal is not a noun while noble is a noun.

Word	Noun	Adjective	Verb	Adverb
monarchal	No	Yes	No	No
noble	Yes	Yes	No	No

monarchal (noun)	noble (noun)
	a titled peer of the realm

monarchal (adjective)	noble (adjective)
having the characteristics of or befitting or worthy of a monarch	having or showing or indicative of high or elevated character
ruled by or having the supreme power resting with a monarch	of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times
	impressive in size, manner, or appearance
	inert especially toward oxygen